1. A study of administrative ratings and student ratings of the performance of high school statistics teachers reports a correlation of r= 1.15 between the two ratings. From this information, we can
conclude that
(A) Administration and students tend to agree on who is a good teacher
(B) There is little relationship between administration and student ratings of teachers
(C) There is a strong association between administration and student ratings of teachers, but it would
be incorrect to infer ausation
(D) An error was made in calculating the linear correlation coefficient
2. Data are obtained for a group of college freshman examining their SAT scores from their senior

Which of the following tables represents exponential functions?

Questions 9-10. use the table of educational expenditures to answer the questions. k-12 education expenditures population indiana $9.97 billion 6.6 million illinois $28.54 billion 12.9 million kentucky $6.58 billion 4.4 million michigan $16.85 billion 9.9 million ohio $20.23 billion 11.6million 9. if the amount of k-12 education expenses in indiana were proportional to those in ohio, what would have been the expected value of k-12 expenditures in indiana? (give the answer in billions rounded to the nearest hundredth) 10. use the value of k-12 education expenditures in michigan as a proportion of the population in michigan to estimate what the value of k-12 education expenses would be in illinois. a) find the expected value of k-12 expenditures in illinois if illinois were proportional to michigan. (give the answer in billions rounded to the nearest hundredth) b) how does this compare to the actual value for k-12 expenditures in illinois? (lower, higher, same? )

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.